Master data management, through which an organization builds and manages a single, consistent, accurate view of key enterprise data, has demonstrated substantial business value including improvements to operational efficiency, marketing effectiveness, strategic planning, and regulatory compliance. To date, however, MDM has been the privilege of a relatively small number of large, resource-rich organizations. Thwarted by the prohibitive costs of proprietary MDM software and the great difficulty of building and maintaining an in-house MDM solution, most organizations have had to forego MDM despite its clear value.
Wednesday 28 December 2016
What is tJoin?
tJoin joins two tables by doing an exact match on several columns. It compares columns from the main flow with reference columns from the lookup flow and outputs the main flow data and/or the rejected data.
Which Talend component is used for data transform using buitl in .NET classes?
tDotNETRow helps you facilitate data transform by utilizing custom or built-in .NET classes.
What is tDenormalizeSortedRow?
tDenormalizeSortedRow combines in a group all input sorted rows. Distinct values of the denormalized sorted row are joined with item separators. tDenormalizeSortedRow helps synthesizing sorted input flow to save memory.
What is tMap?
tMap is an advanced component, which integrates itself as plugin to Talend Studio. tMap transforms and routes data from single or multiple sources to single or multiple destinations. It allows you to define the tMap routing and transformation properties.
What is the difference between OnSubjobOK and OnComponentOK?
OnSubjobOK and OnComponentOK are trigger links, which can link to another subjob.
The main difference between OnSubjobOK and OnComponentOK lies in the execution order of the linked subjob. With OnSubjobOK, the linked subjob starts only when the previous subjob completely finishes. With OnComponentOK, the linked subjob starts when the previous component finishes.
Built-In vs Repository, Which is better?
It depends on the way you use the information is used. Use Built-In for information that you only use once or very rarely. Use Repository for information that you want to use repeatedly in multiple components or Jobs, such as a database connection.
What is the difference between Built-In and Repository?
Built-in: all information is stored locally in the Job. You can enter and edit all information manually.
Repository: all information is stored in the repository. You can import read-only information into the Job from the repository. If you want to modify the information, you must take one of the following actions:
Repository: all information is stored in the repository. You can import read-only information into the Job from the repository. If you want to modify the information, you must take one of the following actions:
Convert the information from Repository to Built-in and then edit the built-in information
Modify the information in the Repository. Once you have made the changes, you are prompted to update the changes into the Job.
What is the difference between "Insert or Update" and "Update or Insert"?
Insert or Update: First tries to insert a record, but if a record with a matching primary key already exists, instead updates that record.
Update or Insert: First tries to update a record with a matching primary key, but if none already exists, instead inserts the record. From a results point of view, there are no differences between the two, nor are there significant performance differences. In general, choose the action that matches what you expect to be more common: Insert or Update if you think there are more inserts than updates, Update or Insert if you think there are more updates than inserts.
What is a component?
Basically a component is a functional piece that performs a single operation. For example, tMysqlInput extracts data from a MySQL table, tFilterRow filters data based on a condition. Physically, a component is a set of files stored within a folder named after the component name. All native components are located in: <Talend Studio installation dir>/plugins/org.talend.designer.components.localprovider _ /components/ directory. Each component is a sub-folder under this directory, the folder name is the component name. Graphically, a component is an icon that you can drag and drop from the Palette to the workspace. Technically, a component is a snippet of generated Java code that is part of a Job which is a Java class. A Job is made of one or more components or connectors. The job name will be the class name and each component in a job will be translated to a snippet of generated Java code. The Java code will be compiled automatically when you save the job.
What is the default pattern of a Date column in Talend?
By default, the date pattern for a column of type Date in a schema is "dd-MM-yyyy".
Can you use ASCII or Binary Transfer mode in SFTP?
No. Secure(or SSH); File Transfer Protocol (SFTP) is not FTP. It was defined as an extension to SSH and assumes an underlying secure channel. There is no relationship between FTP and SFTP, so concepts such as “transfer mode” or “current remote directory” that exist in FTP do not exist in SFTP. For the same reason, there is no transfer option when you select 'SFTP Support' on a tFTPxxx component.
Can you edit generated code directly?
This is no possible, you cannot directly edit the code generated for a Talend Job.
Can you define a variable that is accessible from multiple Jobs?
Yes, you can declare a static variable in a routine, and add the setter/getter methods for this variable in the routine. The variable is then accessible from different Jobs.
Can I change the background color of the Job designer?
Yes. Change the background color of the Job designer by clicking Preferences on the Window menu, followed by Talend, Appearance, Designer, and then Colors.
What is the use of tLoqateAddressRow component in Talend?
This component is use for correct mailing addresses associated with customer data to ensure a single customer view and better delivery for their customer mailings.
What is the difference between the ETL and ELT?
ETL: Extract, Transform, and Load (ETL) is a process that involves extracting data from outside sources, transforming it to fit operational needs (sometimes using staging tables), then loading it into the end target database or data warehouse. This approach is reasonable as long as many different databases are involved in your data warehouse landscape. In this scenario you have to transport data from one place to another anyway, so it’s a legitimate way to do the transformation work in a separate specialized engine.
ELT: Extract, Load, Transform (ELT) is a process where data is extracted, then loaded into a staging table in the database, transforming it where it sits in the database and then loading it into the target database or data warehouse.
What is Talend Open Studio?
Talend Open Studio for Data Integration is an open source data integration product developed by Talend and designed to combine, convert and update data in various locations across a business.
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